x200 Drivers question

[Hazarrd]

I have a few questions about drivers that I'm considering installing on my x200 with Windows 7.

1. I'm using an Intel X25M SSD 160GB HD. What are the Intel AMT 4.2 LMS&SOL and Intel AMT 4.2 MEI drivers? Should I install them?

2. Do I need to install the Fingerprint drivers? The fingerprint reader is working just fine for me.

3. What exactly does the Power Manager driver fix?

4. What is the System Interface driver?

5. What is the Thinkpad Management driver?

6. The volume and brightness bars do not display on my screen when I adjust the levels. Is there a driver that fixes this?

Are there any other drivers that I should install?

Thanks!